Freezer.



No. 880,360. l PATENTED FEB. 25, 190B.

' J. D. GULLINS.

PREBZER.

APPLIGATION FILED JAN,26,1906.

UNITED srfriins PATE'NT ornion JESSE D. COLLINS; OF`CHICAGO, ILLINOIS, ASSIGNOR TO THE CREAMERY PACKAGE MFG. y COMPANY. Y

FREEZER.

new ands useful Improvements in Freezers; .and I do hereby deelarethat the following is a full, clear., and exact description of the same," refer-'ence' bein panying drawings, erence marked thereon, which form-a part of this. specification.-

This invention shown embodied in an ice creamfreezer though adapted for many other purposes? '-lhe obgect ofthe inveiziti'on--A is to refrigerate by means of a flowing current of ,brine formed of ice and salt or some othersuitable refrigerant and to utilize compressed air both to aid in reducing temperature and to` agitate the liquid refrigerant used.

The invention consists in the matters hereinafter described and more fully pointed out and defined in the a pended claims. In the drawings igure Il-is a central vertical section of a device embodying my invention. Fig. 2 is a section taken on line 2- 2 of Fig. l. Fig. 3 is a bottom plan view. Fig. 4 is an enlarged section ofthe air pipe.

As shown inv the' drawings: said refi'igerator Aor freezer Acomprises a vessel, cylindric in form and having al bottom a, and double, concentric walls. A.-A 'between lwhich is packed nonconducting material a',

-such as mineral wool. Within this vessel is secured the containing can B, which is also secured to the bottom a, to afford a tight joint and is concentric with the walls A'-A 'and is spaced `from said Wall A by a pipe b which is coiled around and secured to the outer side o f they Wall B in a spiral'leading from thev bottom to thetop thereof. Said pipel is of a size toiit closely between the.

`walls B and A affording between its turns a relatively broad spiral channel b', for the .refrigerant fluid which is admitted thereinto through a pipe b2 leading from any suitable source of su ply and is delivered from ,the top of, the4 eezer through a pipe b3.

Said pipe b is provided in its upper side as shown in Fig. 4 with closely arranged small apertures b4I through which' air is forced into the brine or otherjrefrigerant thus agitating the liquid and aiding byitsexpansion Vin the liquid to maintain a low temperature. The

Specification of Letters Patent.

Application filed January 26. 1906. Serial No. 297.940.

had- -tothe accomto the letters of ref- Patented Feb. 25, 1908.

from thel pipeA t5 Vwhich l opens thereinto throu h side of the vessel B are ribs or riffles t which lie between' the turns of the pipe b and which lserve to set u-p cross currents 1n the u pwardly flowing current and thus bring all of the refrigerant in contact with the containing wall. B. A cover C fits on said inner can closing thesamev and journaled in said can and supported on a central bearing c in the The operation is as follows: After fillingV the can-and startin `the beater the refrigerantis forced throug the pipe b2 and around the can between the' turns of thplpipe t and is constantly adected by the i owing air through the pipe t which mixes the brine'or refrigerant and prevents unequal refrigeration at different parts of the can. The

from the surface of the can producing cross currents which insures maximum efficiency vof the refri erant.

Obvious y details of construction may be ci les'of'myi invention.

claim as my invention: 1. A freezer com rising a jacketed can, an air pi e perforate on its upper side and air is admitted to said pipe t under pressure l the bottom. Secured on the outer 'riiiies b" .also deflect the refrigerant constantly .modified Without departing from the-prinwoun around the can between the saineand its jacket affording a -spiral passage for the refrigerant between the turns of the air ipe and riiiies on the sides of the can for de ecting the refrigerant.

2. In a freezer, the combination, with a jacketed can, of perforated'me ans for directing a stream of refrigerant spirally between the can and jacketand adapted, to conduct, air jets into said stream of refrigerant.

3.- In a freezer the combination with a can of a jacket therefor and spaced a distance therefrom, an alpertured tube coiled between the can and jac et and affording between its coils a spiral channel for refrigerant, and

deflecting the refrigerantes it passes through l said channel.

'5. v'ln a device of the class describedv the comblnation with a can of a jacket adapted to fitaround the same and'affording a' space for the refrigerant therebetween, an apertured pipe coiled around said can and permitting' air to be forced into said refrigerant and a. plurality of deflectors between adjacent cons. l

6. In a freezer the combination with a jacket of a can adapted to fit'therein and affording a space between the same and jacket, an aperture in the bottom of 'the can, a 'closure therefor, an apertured coiled pipe in saidl space adapted to simultaneously direct yfluid spirally around the can and-to admit cooling expansible fluid thereinto, and means in the passages between adjacent coils to agitate and deflect the passing fluids.

7. In a device of the class described the combination with a can and a jacket having a space therebetweenof an inlet and outlet pipe opening into said space at opposite ends thereof, means in said spacevfor directing a continuous flow of fluid spirally from said vinlet to the outlet and spraying jets of fluld thereinto and means for agitating said fluids so that they act efficiently upon the article to be refrigerated.'

8. The combination with a can and jacket therefor of a coiled pipe between the saine and having a plurality of a ertures therein, a pipe opening into said coi adapted to con duct a current of fluid thereinto, said coiled pipe conducting a continuous stream of fluic' -spirally between thecoils ofthe same and means for deiiecting the same during the passage therethrough, l Y

9. In a device of theclass described the combination with a can and jacket having a space therebetween of means for directinga stream of fluid spirally around the can and linjecting air into'the same yand means forv agitating said fluid While in said space.

In testimony 'whereof I have hereunto subscribed my name-in the presence of two subscribing witnesses.

JESSE D. ooLLiNs.

l i Witnesses:

W. W. WITHENBURY, WM. C. SMITH. 

